Table 1.
Characteristics of the studies included in the systematic review and meta-analysis.
| Author | Country | AITD(n) | Age | Control(n) | Age(years) | Score |
|---|---|---|---|---|---|---|
| Zhao (21) | China | 28 | 44.29±10.7 | 16 | 44.63±10.33 | 8 |
| Zawawy (32) | Egypt | 20 | 38.6±11.1 | 30 | 39.7±10.9 | 6 |
| Ishaq (25) | China | 29 | 40-60 | 12 | 40-60 | 7 |
| Cornejo (28) | Spain | 18 | 40.3±9.6 | 11 | 48.8±6.2 | 6 |
| Ishaq (26) | China | 27 | 35-50 | 11 | 35-50 | 8 |
| Jiang (30) | China | 45 | 16-65 | 59 | 22-71 | 6 |
| Chen (29) | China | 15 | 28.87±6.79 | 14 | 27.29±5.73 | 7 |
| Zhou (33) | China | 14 | 45-65 | 7 | 48-60 | 5 |
AITD, autoimmune thyroid disease.